939010676 - 1088C30 THERMOSTAT UNIT - R+R

Removing ( Refitting ) - Position the vehicle on a lift.    Op. 5530B10 BATTERY - R+R     Op. 5530B52 BATTERY SUPPORT/DRIP TRAY - R.R 1. Undo the radiator coolant drain plug.
Collect the coolant in a suitable container.
1. Disconnect the electrical connection from the engine coolant temperature sensor.
DescriptionConnector
1Engine coolant temperature sensor/sender unit    See K036 ENGINE COOLANT TEMPERATURE SENSOR/SENDER UNIT
2. Loosen the collar and disconnect the upper coolant input sleeve to the radiator, thermostat side.3. Loosen the band and disconnect the coolant return pipe from the climate control system heater, thermostat side.4. Loosen the band and disconnect the coolant supply pipe to the heat exchanger, thermostat side.5. Undo the engine coolant temperature sensor and remove it.
The engine coolant temperature sensor is removed to gain access to one of the thermostat fixing bolts.
6. Undo the bolts (6a) and remove the thermostat (6b) complete with water pump rigid fluid inlet pipe (6c) and O-rings (6d).
1. At the bench, separate the thermostat (1a) from the water pump rigid fluid inlet pipe (1b).2. Remove the seal.
Refitting ( Removing ) - Assemble the rigid coolant inlet pipe and water pump complete with a new seal.1. Place the thermostat (1a) complete with water pump rigid coolant inlet pipe (1b) and new O-rings (1c) back in its housing and secure it tightening the bolts (1d) to the recommended torque.
Apply (white) silicon grease to the O-rings.
ComponentFasteningdia  Value (daNm)Validity
Thermostat unitBoltM6(engine block side) 0.6 - 1.01.9 JTS2.2 JTS
2. Place the engine coolant temperature sensor in its housing and tighten it to the recommended torque.
ComponentFasteningdia  Value (daNm)Validity
Engine coolant temperature sensor-M12(thermostat unit side) 2.21.9 JTS2.2 JTS3.2 JTS
3. Connect the coolant supply pipe to the heat exchanger, thermostat side, and tighten the band.4. Connect the coolant return pipe from the climate control system heater, thermostat side, and tighten the band.5. Connect the upper coolant input sleeve to the radiator, thermostat side, and tighten the band.6. Connect the electrical connection to the engine coolant temperature sensor.
- Tighten the coolant drain plug to the radiator.    Op. 5530B52 BATTERY SUPPORT/DRIP TRAY - R.R     Op. 5530B10 BATTERY - R+R     Op. 0010T20 ENGINE COOLANT - CHANGE - Remove the vehicle from the lift.